Thursday, 28 February 2013

Two new birds join the 2013 courtship season.

Listen out for great spotted woodpeckers drumming and goldcrests singing this week. In Endon the woodpeckers seem to favour the trees that border the high school playing fields. I have heard them there during spring over the past few years.They find dead wood amongst the trees that makes a far reaching reverberating sound when hammered with their bill. Another good place to hear g. s. woodpeckers is Rudyard Lake - you can hear goldcrests there too. 
Great spotted woodpeckers drum on rotting trunks and branches as part of their springtime courtship display. This one is a male (indicated by the red patch on the back of its head).


 


This photo shows the gold rest on the top of a goldcrest's head. These little birds make a high pitched thin "tsee" call, while their song is a high-pitched, wheeling "tee-le-de, tee-le-de".

Wednesday, 20 February 2013

From litter to lunch?

This is a picture of a tributary of Endon Brook which passes under Station Road, Endon. The photograph was taken last September. I was thinking about this photo earlier today when I was reading that last year researchers at Plymouth University and the UK Marine Biological Association  discovered that about a third of a sample of 503 fish caught in the English Channel had tiny fragments of plastic in their digestive systems. And, it is not only fish that ingest plastic. Microscopic creatures that live in our oceans as part of the plankton, have also been found to have these microplastics within their bodies. In fact, the plastic probably gets into the fish when they consume marine plankton as part of their diet.
So what has all this got to do with litter in Endon Brook? Well eventually those plastic bottles and other packaging will end up in the sea via the rivers Churnet, Dove, Trent and then out to sea at the Humber estuary. On their journey down the rivers they will become scratched, battered and bashed and possibly broken into pieces. This physical fragmentation continues whilst at the same time ultraviolet rays from the sun also degrade the plastic. Over a period of some years, in both freshwater and sea, each piece of rubbish is eventually broken down into tiny particles.  In the marine environment the plastic meets up with a whole range of chemical pollutants, such as DDTs from agricultural pesticides and PCBs from manufacture of uPVC plastics, that have accumulated in our seas and oceans since the industrial revolution. These chemicals are hydrophobic - that is, they don't like water, however they do like to bind with oily substances such as the microplastics which act like a magnet to the toxins. The chemical properties of the plastic fragments cause the toxins to become concentrated around the microplastics at level that is up to a million times higher that is found in the surrounding ocean. This preference for these toxins to bond with oils means that they bioaccumulate within the fatty tissues of marine animals that ingest them.  

The NHS recommend "a healthy diet should include at least two portions of fish a week, including one of oily fish", but they also say "There are recommendations for the maximum number of portions of oily fish we should be eating each week. This is because oily fish can contain low levels of pollutants that can build up in the body" These are their recommendations: http://www.nhs.uk/Livewell/Goodfood/Pages/fish-shellfish.aspx

What am I going to do about this? Well, I will gather up plastic litter when I see it (when it is practical to do so). And, I might try to dissuade the kids who drop the litter from doing so, and point out to them that there is a bin only a short distance away. I'll let you know how I get on.

Thursday, 7 February 2013

How to walk a hundred miles and see 69 bird species in one month


In December 2012 I received my regular British Trust for Orniithology (BTO) news email. Tucked away, in amongst the various interesting items, was an invitation to join in the Foot It challenge. This is an informal Blog based competition organised by an employee of the BTO.



According to Mark “ the aim is to see as many species in your area, on foot throughout January. Some people live in areas that are significantly more bird rich than others so you work out what species you are likely to see then work out the percentage of your target that you've seen. This way everyone has an equal chance. The whole purpose of this is of course not just about numbers but to open our eyes to what is literally on our doorsteps.”



Now, I am not a brilliant birder. However I am a reasonable amateur naturalist, a keen walker and I am fairly knowledgeable about what is around in my local environment, so this challenge appealed to me. Hence, I entered the competition.



I drew up a list of what was I thought I was likely to see based on my memory of what I have seen during winter over the past nine years of living in Endon.



My list contained 69 species of bird, which, as I had never counted them up before, rather impressed me.



I categorised each species according to how likely I think it will be to find them during the survey.

Green species are those which are easy to spot, for instance are commonly seen in gardens and other built up areas. (45 species)

Amber species are those that will require a visit to a place which contains their usual habitat, for example large water bodies. (initially 13 then 14 species)

Red species are those that are only seen either because the weather is appropriate (e.g. freezing conditions drive upland species to lowlands for shelter) or by chance (e.g. when I just happen to be in the right place at the right time) (11 species). You will see that there is more than 69 species on the list. This is because during the survey I discovered some species that I hadn't anticipated. In the end I scored 100% (69 species seen out of a target of 69) though four on the original list were replaced by four I did not anticipate seeing.



Here are the results.




Target Species and where seen (in brackets)
Jan 1st
Jan 2nd
Jan 3rd
Jan 4th
Jan 5th
Jan 6th
Jan 13th
Jan 14
th
Jan 17th
Jan 19th
Jan 20
th
Jan 21st
Jan 26th
Jan 27th
















1
Mute swan (Greenway Bank CP)





53








2
Greylag goose (amongst Canada geese on C. Canal)




40









3
Canada goose
(Weavers fields floodwater)
1













4
Barnacle goose (flock of about 20 birds flying over Endon valley)













67
5
Wigeon (males and females on Endon floodwater)













68
6
Mallard
(flood water Weaver's fields)
2













7
Teal (c10 in seasonal pool along Endon Brook, longsdon)




41









8
Tufted duck (deep Hayes CP pool)




42









9
Goosander (along Endon Brook valley)




43









10
Pheasant
(own garden)
3













11
Little grebe (Deep Hayes CP pool)




44









12
Great crested grebe(Greenway Bank CP)





54








13
Cormorant (Greenway Bank CP)





55








14
Grey heron
(Endon brook)
4













15
Common buzzard
(from Joyce's window)
5













16
Sparrowhawk (nr. Stanley head)







60






17
Kestrel
(from Hazelhurst Junction)
6













18*
merlin














19*
Peregrine falcon














20
Moorhen
(Caldon Canal)
7













21
Coot (Stanley Pool)


32











22
Lapwing
(flock of c30 from Joyce's kitchen window)
8













23
Snipe (near C. Canal, snowy weather)







61






24*
Jack snipe














25
Black headed gull
(flying along Endon valley)
9













26
Herring gull (Endon floodwater)













69
27
Lesser black backed gull (Greenway Bank CP)





56








28
Woodpigeon
(Weaver's fields)
10













29
Feral pigeon (farm at Stanley)


33











30
Collared dove (garden bird table Orford Road)



38










31
Tawny owl (from home)
11













32
Barn owl (in rough grassland adjacent ot C. canal between Endon and Stockton Brook)










64



33
Kingfisher (Deep Hayes CP pool)




45









34
Great spotted woodpecker (Endon Riding School)


34











35
Green woodpecker (by Hollybush, Denstone)




46









36
Pied wagtail (on roof or farm by Hollybush)




47









37
Grey wagtail (stream by footbridge off Ch. La.)





57








38
Wren (in tussocky grass along disused railway)
12













39
Dunnock (hedge in Church Lane – walk to work)



39










40
Robin (hedgerow in Endon)
13













41
Blackbird (own garden)
14













42
Fieldfare (along with flocks of redwing, starling and WP in crack willow along Endon Brook)




48









43
Mistle thrush (flying across field from disused raiway)
15













44
Song thrush (in hawthorn along disused railway)
16













45
Redwing (Endon Riding School)


35











46
Goldcrest (in neighbour's conifer tree)

27












47
Long tailed tit (along disused railway)
17













48
Coal tit (from bird hide in Deep hayes CP)




49









49
Blue tit (home)
18













50
Great tit (home)
19













51
Nuthatch (church Lane, Endon)
20













52
Tree creeper (Deep Hayes CP)




50









53
Magpie (along disused railway line)
21













54
Carrion crow (from railway line)
22













55
Rook (from railway line)
23













56
Jackdaw (from railway line)
24













57*
Raven














58
Starling (railway line)
25













59
House sparrow (railway line)
26













60
Tree sparrow (hedge along railway line behind houses)

28












61
Chaffinch (“hedge” along railway line)

29












62
Goldfinch (“hedge” along railway line)

30












63
Greenfinch (Footpath off Church La. Endon)





58








64
Siskin (Deep Hayes CP)






59







65
Lesser redpoll (in birch trees in large mature gd. Off Post La.)








62





66
Bullfinch (brambles alongside Caldon Canal)

31












67
Reed bunting (disused railway line, Longsdon)




51









68
Marsh tit (railway line)


36











69
Jay (scrub by Stanley pool)


37











70
Willow tit (in scrub adjacent to railway line in Longsdon)




52









71
Manderin duck (amongst a flock of mallards at Deep Hayes CP)









63




72
Dunlin (flying over field to land beside Endon Brook)











65


73
Meadow pipit (Endon Sewage Works)












66


NEW SPECIES PER DAY
26
5
6
2
13
6
1
2
1
1
1
1
1
3

RUNNING TOTAL
26
31
37
39
52
57
58
60
61
62
63
64
65
69



After all the participants had entered their scores into the Foot It league table the final result was :

  1. 109 people entered the competition for places all over the British Isles and a few who live abroad.
  2. The top score was 128.89% (though note that the lower the original target the higher the percentage each extra bird scores).
  3. My score was 100% and I came 47th in the league table along with 11 other people. My score included four species I didn't anticipate seeing and they replace four on my original list.
  4. The bottom score was 27.14%, probably someone who couldn't get out much for some reason.


But what did I achieve? Well some very enjoyable walks (about 100 miles in total) and several cheap days out. But most of all it did inspire me to spend more time that usual looking at my local patch and, in particular, understand the relationship between how the local weather relates to the occurrence of particular species. Plus I put most of my records onto Birdtrack – which must be a good result.